Biomimetic alkane hydroxylations by an iron(III) porphyrin complex with H2O2 and by a high-valent iron(IV) oxo porphyrin cation radical complex
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- Biomimetic alkane hydroxylations by an iron(III) porphyrin complex with H2O2 and by a high-valent iron(IV) oxo porphyrin cation radical complex
- Nam, W; Goh, YM; Lee, YJ; Lim, Mi Hee; Kim, C
- WATER-SOLUBLE METALLOPORPHYRINS; AQUEOUS-SOLUTION; CATALYZED HYDROXYLATION; HYDROGEN-PEROXIDE; OXYGEN-ATOM; CYTOCHROME-P-450; HYDROCARBONS; EPOXIDATION; OXIDATION; OLEFINS
- Issue Date
- AMER CHEMICAL SOC
- INORGANIC CHEMISTRY, v.38, no.13, pp.3238 - +
- n iron(III) porphyrin complex with highly electron-withdrawing substituents on the porphyrin ligand efficiently catalyzes the hydroxylation of alkanes by H2O2 via enzyme mimetic oxidation reactions in aprotic solvent. An "isolated" high-valent iron(IV) oxo porphyrin cation radical intermediate, prepared in situ by reaction of the iron porphyrin complex with m-CPBA at -40 degrees C, is capable of activating C-H bonds of alkanes to give oxygenated products efficiently. The hydroxylating intermediate generated in the catalytic H2O2 reaction is evidenced to be the high-valent iron(IV) oxo porphyrin cation radical species.
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